CN101871547A - Low-concentration fuel gas transportation pipeline - Google Patents
Low-concentration fuel gas transportation pipeline Download PDFInfo
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- CN101871547A CN101871547A CN200910011232A CN200910011232A CN101871547A CN 101871547 A CN101871547 A CN 101871547A CN 200910011232 A CN200910011232 A CN 200910011232A CN 200910011232 A CN200910011232 A CN 200910011232A CN 101871547 A CN101871547 A CN 101871547A
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- fuel gas
- concentration fuel
- filler
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Abstract
The invention relates to a low-concentration fuel gas transportation pipeline which relates to a pipeline for transporting low-concentration fuel gas, in particular to a pipeline for transporting low-concentration mixed fuel gas with an explosion danger. The invention provides a low-concentration fuel gas transportation pipeline which can effectively prevent explosion. The low-concentration fuel gas transportation pipeline comprises a pipeline and has the structural key points that fillers are placed in the pipeline, a flow-passing gap is formed among the fillers, and the equivalent diameter of the flow-passing gap is smaller than or equal to the extinction equivalent diameter of the low-concentration fuel gas.
Description
Technical field:
The present invention relates to a kind of pipeline that is used to carry low-concentration fuel, and the pipeline of the low density combination gas of explosion risk is arranged especially for conveying.
Background technique:
In existing combustion gas was used, the combustion gas that requires to carry in the pipeline can not have burning and explosion risk.But in some special industry and occasion, the production of combustion gas can produce the gas of burning and blast, as the pre-extraction of the gas of coal containing methane gas ore deposit in recovery process, in China, the mash gas methane content that coal mine gas pre-draining is adopted accounts for 50%--70% in the situation below 30%; By the Safety regulations requirement, methane content wants emptying, every year to waste the energy of huge amount in line transportation with using dangerous at the gas below 30%; Simultaneously, combustion gas methane is strong greenhouse gas, and is also totally unfavorable to environment.
In low density coal mine gas application facet, apply to 25% methane volume content at present, apart from methane and air gas mixture range of explosion 5-15% 10% safe margin is arranged still; So, carry for the methane gas of 5-25% methane volume content, all there is the delivery safety problem.
The safe transport problem mainly is the appearance of explosive accident: carry the pipeline of low concentration gas, moment high temperature and explode because of electric arc appears in very big electric current in pipeline occurs because of suffering thunderbolt; Because of exploding local deformation high temperature appears and clashes into shock wave in external impact; Because of the spontaneous combustion of corrosion products sets off an explosion; Because of the outer naked light calcination of pipeline and cover heat accumulation high temperature explode.
Chinese invention patent number is 200510044290.0 " coal mine gas and fine spray mixed conveying method and device ", the solution that provides a kind of low-concentration fuel to carry; This scheme is utilized the mode of atomized water spray, makes low-concentration fuel in the pipeline keep saturated humidity and is not higher than the temperature of the whole steam points of water smoke; This method is just controlled the low-concentration fuel temperature, and the low-concentration fuel burning forms, propagates and the flash burn condition of blast and all not eliminations of combustion propagation spatial condition, and the blast wave propagation can not be eliminated and stop to thin water smoke; In addition, the combustion gas saturated humidity is also carried fine drop secretly, to the equipment of rear end, as, internal-combustion engine causes irreversible lesion, does not meet the rear end equipment requirement; Simultaneously, water smoke, oxygen and the coexistence of other corrosive gas, the transporting system seriously corroded, the life-span reduces greatly, and owing to the four seasons and north and south temperature reason, the problem of ruining, losing efficacy is frozen in the water system existence, jeopardizes safety.
In existing low-concentration fuel transporting system, the low-concentration fuel saturated humidity, contain liquid water and impurity, except that pipeline, also need gas-water separation equipment to separate gas and liquid water, filter impurity screening, heat exchanger lyophilization, the low-concentration fuel in these device interior spaces runs into explosion condition can cause burning and blast when satisfying; Need address these problems.
Summary of the invention:
The present invention is exactly at the problems referred to above, and a kind of low-concentration fuel gas transportation pipeline of exploding of can effectively preventing is provided.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technological scheme, the present invention includes pipeline, and the built-in filler of its structure outline pipeline formed ebb interval between filler, and the equivalent diameter of crossing ebb interval is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
Beneficial effect of the present invention:
Because it number is 200510044290.0 way that the present invention does not adopt Chinese invention patent, therefore, make not infringement of gas pipeline; In addition, the built-in prefabricated filler of pipeline, low-concentration fuel has guaranteed to carry the Security of low-concentration fuel from crossing the ebb interval circulation between filler.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the structural representation of spiral filling of the present invention;
Fig. 5 is the structural representation of grid type filler of the present invention;
Fig. 6 is the structural representation of C type filler of the present invention;
Fig. 7 is the structural representation of star-like filler of the present invention;
Fig. 8 is the structural representation of T type filler of the present invention.
Embodiment:
The present invention includes pipeline 1, pipeline 1 built-in filler 2,2 of fillers formed ebb interval 3, and the equivalent diameter of crossing ebb interval 3 is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
Pipeline 1 built-in filler 2 of the present invention can be spiral filling 2, grid type filler 2, C type filler 2, star-like filler 2, T type filler 2 or hybrid type filler 2.
It is current techiques that colleague's those of ordinary skill is very easily realized that 2 of fillers of the present invention formed ebb interval 3.
Claims (2)
1. a low-concentration fuel gas transportation pipeline comprises pipeline (1), it is characterized in that the built-in filler of pipeline (1) (2), forms ebb interval (3) between filler (2), and the equivalent diameter of crossing ebb interval (3) is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
2. a kind of low-concentration fuel gas transportation pipeline according to claim 1 is characterized in that the built-in filler of pipeline (1) (2) is spiral filling (2), grid type filler (2), C type filler (2), star-like filler (2), T type filler (2) or hybrid type filler (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910011232A CN101871547A (en) | 2009-04-21 | 2009-04-21 | Low-concentration fuel gas transportation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910011232A CN101871547A (en) | 2009-04-21 | 2009-04-21 | Low-concentration fuel gas transportation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871547A true CN101871547A (en) | 2010-10-27 |
Family
ID=42996571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910011232A Pending CN101871547A (en) | 2009-04-21 | 2009-04-21 | Low-concentration fuel gas transportation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871547A (en) |
-
2009
- 2009-04-21 CN CN200910011232A patent/CN101871547A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101027 |